Hi Thanks for all the advice! I am trying to use as much of Jürgen's dimensions as possible. I am only "tweaking" the rear frame for inch size tubing but, as I said, I *am* exploring going beyond his recommended squish in the front end. With my tube order yesterday if it all doesn't work I can make a new front end and switch from 28" Back / 26" front to 26" back / 24" front and the pivot angles and other frame geometry (except for 1" less ground clearance) should all remain the same. Apart from a fondness for bigger wheels (more for rolling over bumps than speed) the main reason for wanting a 26" is it could come from my streetmachine after the Rohloff upgrade and it is a nice wheel. Anyway the CAD should let me know if it will fit or not and your good advice will definitely help. Thanks! I have filed Ray's practice experience. Lots of good info there for when I'm ready! :-) The "looking where your going" (and not the front wheel or too close in front) actually applies and works for many diverse things. I used to race a Suzuki GS1100. Even in a small boat on high seas, stand in the middle - look to the horizon and you'll never get sea sick. Cheers Daryl - off email tomorrow (& the weekend) as I'll be working at home (only working tomorrow though).